FVXX22 KWBC 071559 VOLCANIC ASH ADVISORY ISSUED: 2003JUL07/1600Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2003/239 INFORMATION SOURCE: GOES 9 IMAGERY. GFS MODEL WINDS FORECAST. GUAM MWO. ERUPTION DETAILS: ASH AND GAS EMISSIONS SINCE MAY 10. OBS ASH DATE/TIME: 07/1525Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING W 10-15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 07/1525Z. EARLIER PILOT REPORTS AND DMSP IMAGERY INDICATED THAT ACTIVITY WAS STILL OCCURRING. ASH MAY NOT BE SEEN UNTIL VISIBLE IMAGERY IS AVAILABLE. WE WILL CONTINUE TO CLOSELY MONITOR THE VOLCANO AND ADVISE EARLIER THEN 07/2200Z IF NEEDED.....KIBLER NEXT ADVISORY: WILL BE ISSUED BY 2003JUL07/2200Z. NNNN